Nonylphenol ethoxylate was analyzed using Asahipak GF-310 HQ ( a multisolvent GPC column ). The elution pattern is completely different according to the acetonitrile concentration.
Sample : 100ppm Nonylphenol ethoxylate, 20µL
Column : Shodex Asahipak GF-310 HQ (7.5mmID*300mm) Eluent : H2O/CH3CN Flow rate : 0.6mL/min Detector : UV(220nm) Column temp. : 40°C
